Lubricating system



Feb. 12 1924. 1,483,651 J. L. CREVELING LUBRICATING SYSTEM Original Filed Oct.' 11. 1920 Patented F eb. 12, 1924.

UNIT D smrs PATENT OFFICE.

JOHN L. CREVELIN G, OF ORACLE, ARIZONA, ASSIGNOR TO THE BASSICK MANUFACTUR- ING COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF DELAWARE LUBRICATING SYSTEM.

Original application filed October 11, 1920, Serial No. 416,148 Divided and this application filed July 20,

' 1923. Serial No. 652,780.

To all who mitt ma/y concernm Be it known that I, Join: L. CREVELING, a citizen of the United States, and resident of Oracle, in the county of Final and State 8 of Arizona, have invented a certain new and useful Improvement in Lubricating Systems, of which the following is a full, clear, concise, and exact descriptiomreference be- .ing had to the accompanying drawings, 10 forming a part of this specification.-

invention relates to improvements in lubricating systems, and is particularly concerned with certain improvements in that type of lubricating system which'comprises a plurality of nipples or fittings which are attached to the bearings to be lubricated, and a compressor having means for successively making sealed connections with the various fittings or nipples and forcing lubricant under pressure into the same.

Systems of the character described above are now in common use and are designed so as to be able to force lubricant under high pressures into the various bearings. Most of these systems comprise'a compressor having a screw threaded plunger rod or some other means for subjecting the lubricant in the compressor to comparatively high pres sures, but with practically all of these compressors, it is a difiicult matter for the ordinary person to produce pressures of more than 300, 400 or 500 pounds per square inch. It frequently happens that pressures very much in excess of this are required to force the lubricant throiTgh a oearing which has for some time been neglected. Such bearings sometimesrequire pressure as high as from 3000 to 5000 pounds, and the development of these pressures is practically impos- 'sible with the ordinary compressor.

- The objects of m invention are:

First: To provi e a system of the character described, embodyin means whereby the pressure on the lubricant can be in- 46 creased as desired, whenever such increased pressures are necessary to force the lubricant into the bearing.

Second: To provide a compressor such as described, in which the means for efi'ectin 50 the high pressures does not interfere wit the or inary operation of the compressor.

Fourth: To provide a system of the character referred to, in which the means for developing excessively pressures embodies means vfor preventing the high pressures developed therein from being communicated to the other portions of the appartus which are not designed to withstand such high pressures.

Fifth: To provide a high pressure or booster pump which can be easily attached to and detached fromthe ordinary co1n pressor.

Other objects of my invention will appear as this description progresses, reference beingl had to the accompanying drawi'ngs,'in w ich-- Figure ing syste'fn embodying my invention, shown in use for supplying lubricant to a bearing which is shown in cross-sectiomand' Figure 2 is a vertical transverse section through the high pressure element of my im roved lubricating system.

n the drawings, I have illustrated my invention as embodying the usual commercial compressor, comprising the barrel 5 havin the removable cap 6, in which is three ed the piston rod 7, the inner end of which carries a suitable plunger 8, and the outer end of which is provided with a handle -9 by means of which it can be rotated. The barrel 5 is provided with a discharge conduit 10 which is here illustrated as being of a flexible type' This conduit 1 is a side elevation of a lubrioat ends in a coupling member 11 which is of 'f well known construction, and provided with bayonet slots 12 which are adapted to receive the ends of the pins projecting from the sides of the well known fitting or nipple larly pressures amounting-to several thousand pounds per square inch, I provide a high pressure or booster pump, which comprises the high pressure chamber or cylinder 13, in which is slidably mounted a hollow plunger or piston 14. The outer end of this yond the sides of the plunger 14. The di,-' mensions of the outer end of the plunger 14 and the position of the pin 18 are such that the coupling member 11 of the ordinary commercial compressor canbe attachedthereto and detached therefrom in the same manner in which it is attached to and detached from the ordinary c'ommercial fitting.

The end of the high pressure chamber or cylinder 13 opposite the plunger 14 is closed with the exception of the discharge orifice 19, and is provided with a coupling member 20 having a bayonet slot 21 formed therein, the-sides of which are inclined as shown in the drawings, 'so that when it is placed upon the commercial fitting and rotated in a clockwise direction, the inclined edges of the slot 21 will draw the coupling member 20 onto the fitting, thereby compressing the gasket 22 which rests.

against the end member 23 of the highpressure chamber, and effectually sealing the omt between the high pressure chamber and the fitting.

While any suitable means may be used for forcing the plunger 14 into the high pressure chamber 13, I prefer to accomplish this by means of the mechanism shown in Figure 1. Here the high pressure chamber 13 and the plunger 14 are providedwith the parallel elements 24 and 25, the outer ends of which are notched as shown at. 26 and 27 to receive the pins 28 and 29 respectively, carried by the cross handle members 30. These handles are pivotally connected together as shown at 31, and the innerends thereof arepivotally connected with the members 24 and 25 by means of the pivot pins 32 andv 33 respectively. A spring 34 may, if desired, be provided for tending to urge the handles 30 to their openposition. 1

In the use of my improve-d system, the high pressure element may, if desired, be continuously attached to the compressor comprising the barrel 5, the conduit 10, and the coupling 11, in which case the handles 30 may be used for manipulating the coupling 2 0 to attach it to and disconnect it .from the various fittings which are to ,re-

ceive lubricant. -When attached to a fitting, the operator merely turns the handle 9, whereupon the lubricant is forced from the holds the, closure 15 upon its seat, and there bly prevents the high, pressure developed in t e booster element from being communicated to the coupling 11, conduit 10 and barrel 5.

By properly proportioning or dimensioning the high pressure chamber 13, the plunger 14 and the operating mechanism, any

desired pressure can be exerted upon the lubricant in the high pressure chamber without undue exertion on the part of the operator.

This application is a division of my cope'nding application, Serial Number 416,148, filed October 11, 1920.

Having thus described my invention, what I claim is: 4

1. The combination with a lubricant compressor having a discharge conduit provided at its free end with a coupling member for making a detachable connection with a lubricant receiving nipple, of means for increasing the pressure on the lubricant delivered to the nipple, comprising a high pressure pump, means for detachably con-- necting the intake of said pump with said coupling member. and means for detachably connecting the discharge conduit of said pump with a lubricant receiving nipple.

2. The combination with a lubricant compressor having a discharge conduit provided at its free end with a coupling-member for making a detachable connection with a lubricant receiving nipple, of detachable means interposed between said coupling and said nipple for increasing the pressure on the lubricant delivered to the nipple.

3. The combination with a lubricant compressor having a discharge conduit provided at its free end with a coupling member for making a detachable connection with a lubricant receiving nipple, of means secured to said connecting means for increasing the pressure upon the lubricant delivered to said nipple.

4. A lubricant compressor, comprising a pump having an intake for making a detachable connection with the discharge conduit of a main compressor, and a discharge conduit for making a detachable connection with a lubricant receivingnipple, a non-' return valve for. said intake, and a device in said discharge conduit for making a with a lubricant receiving nipple, and a sealed connectlon With a lubrlcant receiving device in said discharge conduit for making 10 nipple. I a sealed connection with a lubricant receiv- 5. A lubricant compresson compnsmg a ing nipple, 5 pump having an intake for making ade- In Witness whereof, I hereunto subscribe tachable connection with the discharge conmy name this 12th day of July, 1923.

duit of a main compressor, and a discharge conduit for making a detachable connection JOHN L. CREVELING. 

